Axminster Power Tools sell some fancy dovetail saws and might help you.
I agree that it would be useful to know if any saw doctors survive. I used to sharpen and set my own but, like you, am not now confident of doing so.
I now tend to reach for a Japanese pull-saw whose blade can, of course, be replaced when blunt.
Edited By ega on 06/10/2019 17:28:25